2-Methyl-3-(methylthio)pyrazine 2-Methyl-3-methylmercaptopyrazine 2-Methylmercapto-3-methylpyrazine 2-Methylthio-3-methylpyrazine 2882-20-4 3-Methyl-2-methylthiopyrazine EINECS 220-736-8 FEMA No. 3208 NSC 222757 Pyrazine, 2-methyl-3-(methylthio)-